Pith Number

pith:FS4ZAV3U

pith:2018:FS4ZAV3UBWVBQJSOWFIWMS3OON

not attested not anchored not stored refs pending

Linking ImageNet WordNet Synsets with Wikidata

Finn {\AA}rup Nielsen

arxiv:1803.04349 v1 · 2018-03-05 · cs.DL · cs.CL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FS4ZAV3UBWVBQJSOWFIWMS3OON}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:21:29.929098Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2cb99057740daa18264eb151664b6e734acd8dfa98a1fd87e8478c89a5746ee7

Aliases

arxiv: 1803.04349 · arxiv_version: 1803.04349v1 · doi: 10.48550/arxiv.1803.04349 · pith_short_12: FS4ZAV3UBWVB · pith_short_16: FS4ZAV3UBWVBQJSO · pith_short_8: FS4ZAV3U

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/FS4ZAV3UBWVBQJSOWFIWMS3OON \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 2cb99057740daa18264eb151664b6e734acd8dfa98a1fd87e8478c89a5746ee7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fafbede6bc3ab34820c346199d878a53c1d390759658cbea61b20972882450d6",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2018-03-05T17:07:44Z",
    "title_canon_sha256": "3d278193644c83ae5e4a9fee5568b2e9a6d9b7640744a8707013f340b257a66e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.04349",
    "kind": "arxiv",
    "version": 1
  }
}